Apparatus for capping and paraffining the carbon rods of the dollies of electric dry batteries



Oct. 28, 1930. .E. SCHMIDT 1,730,139

' APPARATUS FOR CAPPING AND PARAFFINING THE CARBON RODS OF THE DOLLIES OF ELECTRIC DRY BATTERIES Filed March 29. 1929 5 Sheets-Sheet l E. SCHMIDT APPARATUS FOR CAPPING AND PARAFFINING THE CARBON RODS OF THE DOLLIES 0F ELECTRIC DRY BATTERIES Filed March 29. 1929 3 Sheets-Sheet' 2 r ullnnn n n u n u Ill-ll I Oct. 28, 1930. E. SCHMIDT 1,730,139

I I APPARATUS FOR CAPPING AND PARAFFINING THE CARBON RODS OF THE DOLLIES OF ELECTRIC DRY BATTERIES Filed March 29, 1929 S Sheets-Sheet 3- Jwwafar: m g-f Patented Oct. 28,- 1930 N ED TES EDMUND scrnvrrnn: or B n-LrN-rmvrrmnor, GERMANY, AssIeNon' To THE FIRM PATENT OFFICE.

AUTOMSPEZIAL MA$OHINENG. IVLB. I'L, OF BERLIN, GERMANY I AJPARATUS FOR CAPVPING AND PARA FFINING THE CARBON RODS OF THEDOLLIES OF ELECTRIC DRY BATTERIES Application filed lv'l'arch 29,1929, SerialNo. 351,011, and in Germany December 19 27.

' The carbon rods of the dollies of electric dry batteries must be provided with a current-conducting metal cap which must then be coated with parafiin in order to prevent short circuits whenthe dollies of rods are assembled as, for example, in conveying means, and to prevent corrosionof the metal ca a 'lhe invention relates to machine by means of which these operations are automatically carried out, that is, the carbon rods are capped therein, conveyed to the paraflin bath, coat-ed Witlrparaflin thereinand then delivered to a conveying apparatus;

The invention is illustrated in the accompanying drawing in which Figure 1 is a planof the machine, Figure 2 is a side View from" the left,

Figure 3is a section on theline 3'-3 of Figure '1, on a larger scale, f

Figure 4 is a section on the line 4-4 of Figure Figure 5 "1s a section through theparaflin container. I

v of the machine and all the parts are driven thereby; The principal parts of the machine are: a M

A container 3for the sorting and ad ustment of the caps, I r

TA trought for the oonveyanceof the adusted' caps,

An intermittently. rotating drum 5' for receiving and adj usting the dollies relatively to the caps, and also an apparatus for connecting the dollies'with the caps,"

' A oonveyer apparatus 6 for the removal of the capped (lollies, and

'An apparatus 7 forpara'iiin'ing the caps.

From the spindle2and by means of adisc and cord'9,a disclO, carriedon a spindle 11 is: rotated. Thespin'dle 11 is mounted in a support 12 (Figures 2- and 4) of'the base plate 1, and a cylinder l lwhich'is closed by a side wall 13 is rigidly attached to this sup-- port,- the'cylinder being rigidlyfi red to the cap container 3 by means of screws. ,On the "spindle l1 is rigidlyfitted a wheel 15, carry-,

i-ng pins 16 in a circle adjacent to its circu-1nference, the diameter of the pins being heads 18 and they are pressed by means of springs 19 against a ring 20 fastened in the cylinder 14, the ring having an inclined surface 21 for about one half of its circumference. v. The cap container 3 has at theend facin 'lesszthanthat of a cap 17. The pins have i the cylinder 14:, an inclined widened part 22 i to whichva cylindrical. projection 23 adjoins the hei ht 24; of which projection corresponds to that of a cap. A spindle 25 independent of the spindle 11 is mounted inthe front end 4 into the slot formed by the projection 23. As

the height of the latter isequal to the height of the caps, although this height'is smaller. than the diameter of the caps, the latter can pass-into the slot onlywhen their central axis parallel to the axis of the container3.

When the wheel 15vis rotated, the pins 16 with the heads 18,-move upwardly on the inj V clinedlsurface 21, and are drawn back, so that they'passout of nthelslot 23uand=caps can enter'into thelatter. When then the pins are successively released at the. inclined springs 19, penetrate into one of the caps of-the cap faces the pin, and retains the-cap.

It pushes in front of it in the slot 23 the caps V which have not been seized by any -pin, unti1 the said caps reacha stripper 28 (Figure3).

This latter extends through the flange 29 of theicap containerv 3 into the slot 23 and is under the pressureof a spring 30. By means or the stripper the caps not gripp'edby a pin 16ar'e forced out-of the-slot23 andfa'll-back,

means of the spring 30, into the slot 23. The pin then 'bringsthe cap carried thereon. the .conveyungttrough (Figure L This consists of a chainrel opentowards the pin "surface 2l,they are drawn forwardby the situated in the slot 23, provided the open end and situated in the flange 29 and having a diameter equal to the diameter of the caps, into which it guides the cap. The inclined surface 21 then grips under the head 18 of the pin anddraws it back so that the cap is freed from the pin. The caps press one another into the channel 31 and onwards into a pipe 32 connected thereto, up to a pipe leading downwards'on to the dollies drum 5, in whichpipe they slide down. When the plipe is filled with caps, the surplus caps pass rough a branch pipe 35 into a container.

In order to prevent incorrectly positioned caps remaining at the point of the slot 23 where the pins are released from the inclined surface 21 and spring forward, an arm 26 is provided (Figure 3) to which a rocking movement is imparted from the main spindle 1 through an eccentric disc 34 and connecting rod 35, the extent of the throw being indicated in Figure 3. The caps are thus prevented from becoming fixed.

The dollies 36 to be capped (Figure 2) are placed on the dolly drum 5 either automaticall or by hand. The drums are provided wit recesses37 to take the dollies 36 with recesses 38 for the carbon rods and with recesses 39 for the caps 17, and are rotated intermittently by one division at a time. The drive takes place from the main spindle 2 by means of an eccentric disc 41 and rod 42 which rotates a ratchet wheel 44 by means of a pawl 43.

In order to prevent the caps 17, as they slide out of the pipe 32 into the recesses 39, from tip ing towards the carbon rod 43, a slide 45 Figure 3) is provided which moves in a slot 46 (Figure 6) between the recesses 38 and 39 and is sufliciently long to close several recesses. The said slide is attached by one arm 48 to the drum spindle 49 of the dolly and is rocked up and down by the backward and forward swinging arm 47 of the pawl 43 of the ratchet wheel 44, so that it alternately lies in front of and away from the pi 32. hen the drum has brought a dolly into the capping position, there is rotated from the main-spindle 2 by means ofbevel wheels 50, a spindle 51 on which is fitted an eccentric 52 igure 2)- by means of which a lever 54 hinged tothe plate 1 at 53,:is rocked to and fro. The said lever moves a forcing rod 56 running in a straight direction in a guide 55, against the dolly 36, which is thereby'forced with its carbon rod 40 into the opposite cap 17, which is held by a spring bolt 57 which "allows the cap to ield in the case of excessive pressure. A spring 58 draws back the press lever 54. By means of the intermittently rotating drum 5 the capped dollies are carried to a rocking trough 59. The latter is fitted on an arm 61 pivoted at 60, with which a rod 62 engages. from the main driving spindle 2 by means of The latter is rocked to and fro an eccentric 63, whereby the trough 59 is rocked, so that it takes a dolly from the drum 5 and passes it on the conveying apparatus 6.

For this purpose a rod 66 moved in a straight line is reciprocated, from the spindle 51 (Figure 1) by means of a crank 64 and connecting rod 65, the rod 66 bearin against the base of the dolly in the trougfi 59 and driving it into the conveying apparatus; The latter consists of a band passing over pulleys 67, 68. The pulley 67 is mounted on thespindle 69 which is intermittently rotated by means of a ratchet wheel 70 and pawl 71. I The pawl receives its drive from the spindle 51 by means of eccentric 72 and rod 73. I

To the inner side of the conveyer band 6 cylindrical containers 74 are fixed at e ual distances apart which are so shaped that t ey can receive the dollies proper, and which have a hole 75 at their base, through which the 7 carbon rod 40 of each dolly projects. By means of the rod 66 the dolly is thus forced into one of the containers 74 and carried by the band 6 to the paraflin ap aratus 7 (Figure 5). The latter consists of a container 77, heated by a heating apparatus 76, and containing the liquid paraffin bath. Into the latter a scoop'78, projects the depth of which corresponds to the extent to which the cap i and carbon rod are to be paraffined, and which is connected by means of an arm 79 with a slide 80. The latter is moved up and down by means of an angle lever 81 and rod 82 from an eccentric 83 which is rotated by the spindle 2. The scoop 78 is thus alternately raised and lowered, and when it is raised the carbon rod 40 provided with the cap dips into the mass contained in the scoop and is thereby paraflined.

The band 6 then carries forward the finished dollies. It is sufiiciently long to permit the parafiin on the carbon rods to cool during the transit. The wheel 68 is rotated by the band 6. While the dollies are being carried round the said wheel they are prevented from falling out of the containers 74 by a plate'84, until they come over a conveyer apparatus 85 into which they fall and by which they are carried forward. In order to prevent a dolly adhering to a holder 74,

a stripper 86 is provided which presses against the projecting carbon rod.

Brake discs 87 forced against each other by .a spring 88 are provided on the spindle 49 ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. In'a machine for the automatic capping and paraflining of the carbon rods of the dolli'es of electric dry batteries, a main drive,

' insane to rock'the spindle froingthe 1113111 gage into the slot and in eachof the caps contained therein, a guiding trough receiving 7 the from the spring pins after withdrawal of the said'pins, in front of the dollies tobe capped,'a pressapparatus vfor forcing the caps on to the'carbon rods, aparaflin bath, means to bring the dollies' capped automaticallyto said bath, means for dipping the heads ofthe carbon rods 111a, said bath'and means to remove the finished dollies.

2. In. a machine for the automatic capping andparafiing of the" carbon rods of the dollies of electric dry batteries, aniain drive, acon tainer for the-metal, caps,xa wheel rotated trom said rnain drive and forming with the container a slot ota' width equalto theheight of the caps, spring pins arrangedin the said wheel, meansto draw back and release the oinsintermittently,.so that they engage into the slot and in eachi of the caps contained therein, a guiding trough receiving; the caps trom the spring pine, after withdrawal of the said pins, in trontot "the dollies tobe I capped and a I spring; stripper arranged in front ot'tlie inlet of the. guide trough and removing the caps" raised in the'lslot butgnot gripped the pins, out of the slot and throwthem back intothe container.

3. Ina machine for the automaticcapping and'paraihning of the carbon rods ot the (lollies otel'ectricdry batteries, a main drive, a containertor the metal caps, a wheel rot'ated from saidm'aindrive and forming with the container a slot of a width equal to the heightof-the caps,zspring ins arranged in' the said wheel means to draw back and. releaselthe pins intermittently, so that they engage into the slot filial-in each of the caps Qcentained therein, a guiding trough receiving "the caps from the spring pins, after with drawal of the 'said pins',;in front of thefdoliies to be, capped,c1earing device arranged in theis'l'ot between the cancontainer and the aspindle for said clearing device and drive. r ,7

a". In a machine for the automatic capping and paraiiining of the carbon rods of the dollies of electric dry batteries, a main drive, a container for the metal caps, a wheel rotated from said main drive and forming with the container a slot of a width equal to the height of the caps,.spring pins arranged in the said wh'eelheads on said spring pins, a fixedring, there being an inclined surface on said ring, the saidring and the inclined surface forming aguide for the heads and trough guiding the caps to the dollies;

and parafiining of thecarbolrrods oftlie'doldrum rotated intermittently from the main drive, there being recesses in said'dr'umre: ceiving the dollies, there being other recesses, into which the caps fall from the guide trough and which are so arranged that the caps lie centrally to the axesot the carbon rods, and means to move forward the (lollies against the caps. h

8. In a machine for the automatic capping and paraiiining of the'c-arbonrods of the dol-- lies of electric dry batteries, a main drive, a guide trough to bring the caps to the dollies, a drum rotated intermittently -tromthe main drivegthere being recesses in said drum-re ceiving the dollies,-there being other recesses, into which the caps fall from the guide trough and which are so arranged that the caps lie centrally to the axes of the carbon rods,

meanstc move forward the dollies against the caps,there being slots inthe drum between the recesses for thecaps and the recesses for the dollies and a slide movable" in theslots and closingthe opening of the guide t. and parafiining of the carbon rods-oi the into Which the caps tallfrom the guide trough and which areso arranged that the caps lie centrally to the axes of the carbon rods,

means to move forward the clot-lies against the caps, there being slots in the drum between the. recesses for the caps and the r-ecessesrt'or the dollies anda slide movable in the slots and closing the opening ofthe guide trough said slidebeing sufficiently-wide tolenableit to close each time several recesses of the drum. Y 8. In a machine for the'automatieca and paraihning or the carbon rods or i by lollies of electric dry'batteries, a main drive,

a guide trough to bring the capsto the do? adrum rotated intermittently fromthe i drive there being recesses said drum receiving the (lollies, there beingother recesses,

into which the caps tall troin the guide trough In a machine for the automatic capping and which are soarranged thatthecaps iie centrally to the axes of the carbon rods, ns 5 .1

to: move forward the dollies against the caps, their'being slots in the drum between the rece's'ses for the ,-dollies and the recesses for the caps, a slide, a doubleleve-r on the axis lever-and tlrei sli'de intermittently 9. a machine for the-automatic'cap otthe'drum and means swinging the double u H V a ,and ng "of the carbon-rods otthe do es 0% electric, dry batteries, a 'IHEILHYClTlVB,

5. Ina machine for the automatic capping aguidetroughtb bringthecaps to the doilie's', T3

a drum rotated intermittently from the main drive, there being recesses in said drum receivin the dollies, there being other recesses,

into W ich the caps fall from the guide trough 5 and which are so arranged that the caps lic centrally to the axes of the carbon rods, means to move forward the (lollies against the caps and means to brake the rotation of the drum.

10. In a machine 'for the automatic capping and paraflining of the carbon rods of the dolhes of electric dry batteries, a main drive, a uide trough to bring the caps to the dollies, e. um rotated intermittently from the main drive, there being recesses in said drum receiving the dollies, there being other recesses, into which the caps fall from the guide trough and which are so arranged that the caps lie centrally to the axes of the carbon rods, means to move forward the dollies against the caps, and a spring bolt holding the caps during the insertion of thecarbon rods yieldingly.

11. In a machine for the automatic caping and paraflinin of the carbon rods of the dollies of electrlc dry batteries, a main drive, a guide trough to bring the caps to the dollies, a drum rotated intermittently from the main drive there being recesses in said drumreceiving the dollies, there being other recesses, into which the caps fall from theguide trough and which are so arranged that the ca s lie centrally to the axes of the carbon to s, means to move forward the dollies against the caps, a tiltable trough, means to move the dollies into the said tro h, means driven by the main drive to tilt ifiie trough, a conveyer apparatus receiving the dollies from the trough and bringing them to a parafiin bath. V

12. In a machine for the automatic capping and paraffining of the carbon rods of the dollies of electric dry batteries, a main drive, a guide trough to bring the caps to the dollies, I a drum. rotated intermittently from the main drive and bringing the dollies to the caps, means to unite the dollies with the caps, a circulating band having containers corresponding to the dollies and means to bring the dollies from the drum into the said containers. I

13. In a machine for the automatic capping and paraflining ofthe "carbon rods of the dollies of electric dry batteries, a main drive, a guide trough to bring the'caps to Ill s from the main drive and bringing the dollies to the caps, means to unite the dollies with ers corresponding to the dollies there being a hole at the base of the said containers through which the carbon rod of the dolly can project, and means to bring the dollies from the drum into the said containers.

14."In a machine for the automatic capping and paraiiining of the carbon rods of drive, a guide trough to bring the caps to the dollies, a drum rotated intermittently from the main drive and bringing the dollies to the caps, means to unite the dollies with the caps, a circulating band having containers corresponding to the dollies, there being a hole at the base of the saidccontainers through which the carbon rod of the dolly can, project, means to bring the dollies from the drum into the said containers, a parafiining apparatus arranged between the two stretches of the band and means to coat the carbon rods with paraflin.

15. In a; machine for the automatic capping and parafiining of the carbon rods of the dollies of electric dry batteries, a main drive, a guide trough to bring the caps to the dollies, a drum rotated intermittently from the main drive and bringing the dollies to the caps, means to unite the dollies with the caps, a circulating band having containers corresponding to the dollies there being a hole at the base of the said containers through which the carbon rod of the dolly can project, means to bring the dolliesfrom the drum into the said containers, a parafiining apparatus arranged'at one end of the band between the two stretches of the same, means tocoat the carbon rods withparafiin, the band being sufiiciently long that the carbon rods after coating with the paraflin can cool during the further transport.

16. In a machine for the automatic 'capping and parafiining ofthe carbon rods of the dollies of electric dry batteries, 9. main drive, a guide trough to bring the caps to the dollies, a drum rotated intermittently from the main drive and bringing the dollies to. the caps, means to unite the dollies with the caps, a circulating band having containers corresponding to the dollies there being a hole at the base of said containers through which the carbon rod of the dolly can project, means to bring the dollies from the drum into the said containers, a paraflining apparatus arranged between the two stretches of the band, a scoop arranged in the paraflining apparatus and means driven by the main drive and moving the scoop up and down in the paraifining apparatus, so that when the scoop is raised the carbon rods dip therein.

In testimony whereof I affix my sggnature.

. EDMUND SCH IDT.

the dollies, a drum rotated intermittently the caps, a circulating band having contain- A the dollies of electric dry batteries, a main 

